How can I define type variant in c#?

[=?Utf-8?B?cmtibmFpcg==?=]

How can I define type variant in c#?

[=?Utf-8?B?YnJ1Y2UgYmFya2Vy?=]

use datatype object. you can use the is operator to determine type

void mtProc(object obj)
{
if (obj is int)
...
else if (obj is string)
...
else if (obj is myDatatype)
....
}

to call any methods other than the object generic, you will need to use a
cast.

note: if you are call calling a com routine, object is also the type that is
used for a variant parameter (or return value)

-- bruce (sqlwork.com)
"rkbnair" wrote:

How can I define type variant in c#?

[=?Utf-8?B?cmtibmFpcg==?=]

Thanks. What should I do if I do not know the return type of a class/function
of a certain thirdparty library?

In VB I can say

variant abcd=MyThirdPar tyLib.MyThirdPa rtyLibFunction( )

What would be the equivalent in C#?

"bruce barker" wrote:

use datatype object. you can use the is operator to determine type

void mtProc(object obj)
{
if (obj is int)
...
else if (obj is string)
...
else if (obj is myDatatype)
....
}

to call any methods other than the object generic, you will need to use a
cast.

note: if you are call calling a com routine, object is also the type that is
used for a variant parameter (or return value)

-- bruce (sqlwork.com)
"rkbnair" wrote:

How can I define type variant in c#?

[=?Utf-8?B?UGV0ZXIgQnJvbWJlcmcgW0MjIE1WUF0=?=]

The .NET Framework does not have a "variant" type. If you start typing the
method signature of a referenced third-party library in the Visual Studio
IDE, Visual Studio Intellisense will show you the return type of the method.

Failing that, you can do this:

Object abcd=MyThirdPar tyLib.MyThirdPa rtyLibFunction( );

type t = typeof(abcd);

-- Peter
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
MetaFinder: http://www.blogmetafinder.com
"rkbnair" wrote:

Thanks. What should I do if I do not know the return type of a class/function
of a certain thirdparty library?

In VB I can say

variant abcd=MyThirdPar tyLib.MyThirdPa rtyLibFunction( )

What would be the equivalent in C#?

"bruce barker" wrote:

use datatype object. you can use the is operator to determine type

void mtProc(object obj)
{
if (obj is int)
...
else if (obj is string)
...
else if (obj is myDatatype)
....
}

to call any methods other than the object generic, you will need to use a
cast.

note: if you are call calling a com routine, object is also the type that is
used for a variant parameter (or return value)

-- bruce (sqlwork.com)
"rkbnair" wrote:

How can I define type variant in c#?

[=?Utf-8?B?cmtibmFpcg==?=]

That will do it.

Thanks a lot.
"Peter Bromberg [C# MVP]" wrote:

The .NET Framework does not have a "variant" type. If you start typing the
method signature of a referenced third-party library in the Visual Studio
IDE, Visual Studio Intellisense will show you the return type of the method.

Failing that, you can do this:

Object abcd=MyThirdPar tyLib.MyThirdPa rtyLibFunction( );

type t = typeof(abcd);

-- Peter
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
MetaFinder: http://www.blogmetafinder.com
"rkbnair" wrote:

Thanks. What should I do if I do not know the return type of a class/function
of a certain thirdparty library?

In VB I can say

variant abcd=MyThirdPar tyLib.MyThirdPa rtyLibFunction( )

What would be the equivalent in C#?

"bruce barker" wrote:

use datatype object. you can use the is operator to determine type
>
void mtProc(object obj)
{
if (obj is int)
...
else if (obj is string)
...
else if (obj is myDatatype)
....
}
>
to call any methods other than the object generic, you will need to use a
cast.
>
note: if you are call calling a com routine, object is also the type that is
used for a variant parameter (or return value)
>
-- bruce (sqlwork.com)
>
>
"rkbnair" wrote:
>
How can I define type variant in c#?